16587587408064 has 56 divisors (see below), whose sum is σ = 44489197086960. Its totient is φ = 5453453389824.

The previous prime is 16587587408059. The next prime is 16587587408081. The reversal of 16587587408064 is 46080478578561.

It is a self number, because there is not a number n which added to its sum of digits gives 16587587408064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591723549 + ... + 591751580.

Almost surely, 2^{16587587408064} is an apocalyptic number.

It is an amenable number.

16587587408064 is an abundant number, since it is smaller than the sum of its proper divisors (27901609678896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16587587408064 is a wasteful number, since it uses less digits than its factorization.

16587587408064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183475217 (or 1183475207 counting only the distinct ones).

The product of its (nonzero) digits is 361267200, while the sum is 69.

The spelling of 16587587408064 in words is "sixteen trillion, five hundred eighty-seven billion, five hundred eighty-seven million, four hundred eight thousand, sixty-four".